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Finding the Fourth Proportional to 6,639.07, 9,959.06 and 2,479

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Solution

The fourth proportional to 6,639.07, 9,959.06 and 2,479 is: 3,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.07 : 9,959.06 = 2,479 : x
  2. Step 2: Convert to fraction form
    6,639.07/9,959.06 = 2,479/x
  3. Step 3: Cross multiply
    6,639.07x = 9,959.06 × 2,479
  4. Step 4: Simplify right side
    6,639.07x = 24,688,509.74
  5. Step 5: Solve for x
    x = 24,688,509.74/6,639.07
  6. Step 6: Final answer
    x = 3,718.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.